The application of the particle damping technology in civil engineering is limited owing to the complex nonlinear mechanical properties and lack of a reasonable mechanical model. The existing equivalent single‐particle model cannot include the interactions between particles. In addition, an appropriate determination of parameters is required. In this study, to consider the influence of the interactions between particles, a dual‐mass equivalent model (DMEM) is proposed based on a particle motion state analysis. A shaking table test on a single‐story frame under a harmonic excitation was carried out to verify the rationality of the model. The variations in connection stiffness k and damping coefficient c with the filling ratio were evaluated. Experiments under earthquake excitations were carried out to verify the adaptability of the model. The comparison between the DMEM and the existing equivalent model was also conducted to verify the simulation accuracy of the model. Then, the effect and mechanism of the multiparticle damper were analyzed based on the DMEM with the optimal stiffness k. The mass coupling coefficient had significant effects on the damping and mechanism of the multiparticle damper. Although it is different from the actual multiparticle damper, the proposed DMEM is of significance for the further development and applications of multiparticle dampers in civil engineering.

中文翻译：

---

考虑质量耦合系数的多颗粒阻尼器的等效模型

The application of the particle damping technology in civil engineering is limited owing to the complex nonlinear mechanical properties and lack of a reasonable mechanical model. The existing equivalent single‐particle model cannot include the interactions between particles. In addition, an appropriate determination of parameters is required. In this study, to consider the influence of the interactions between particles, a dual‐mass equivalent model (DMEM) is proposed based on a particle motion state analysis. A shaking table test on a single‐story frame under a harmonic excitation was carried out to verify the rationality of the model. The variations in connection stiffness k and damping coefficient c填充率的评价。在地震激励下进行了实验，以验证该模型的适应性。还对DMEM与现有等效模型进行了比较，以验证该模型的仿真准确性。然后，基于具有最佳刚度k的DMEM分析了多颗粒阻尼器的作用和机理。质量耦合系数对多颗粒阻尼器的阻尼和机理有重要影响。尽管与实际的多颗粒阻尼器不同，但提出的DMEM对于多颗粒阻尼器在土木工程中的进一步开发和应用具有重要意义。